Apparatus for spreading bitumen or material of a similar character.



BEST AVNLABLE CO PATBNTBD JUNE 6, 1905.

A. E. SCHUTTB.- APPARATUS FOR SPRBADING BITUMBN 0R MATERIALOF A SIMILARCHARACTER.

APPLICATION FILED JULY 30, 1904.

. N/E NT B 11%! g.

UNITED STATES BEST AVAILABLE Patented June 6, 1905.

PATENT OFFICE.

AUGUST E. SCHUTTE, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO WARREN BROTHERSCOMPANY, OF BOSTON, MASSACHUSETTS, A

CORPORATION OF WEST VIRGINIA.

APPARATUS FOR SPREADING BITUMEN R MATERIAL OF A SIMILAR CHARACTER.

SPECIFICATION forming part of Letters Patent No. 791,? 26, dated June 6,1905.

' Application filed July 30, 1904. Serial No. 218,834.

To all whmn it may concern:

Be it known that LAUGUST E. S IIUTTE, a subject of William, GermanEmperor, but having taken out my first naturalization-papers as acitizen of the United States, residmg in Boston, in the county ofSuffolk and State of Massachusetts, have invented new and usefulImprovements in Apparatus. for

' S reading Bitumen or Material of a Similar ingforward and upward Caracter, of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, which form a part ofthis specification.

My invention relates to an improvement in a paratus for spreadingbitumen or material of a similar character over asurface; and itconsists, essentially, in a receptacle orireservoir for the bitumen andaspreading means, which comprises a spreader having a peculiar shape andconstruction, whichinsures economy of spreading material and an evendistribution over the surface being treated.

In laying bituminous pavements it is nec essary that a thinlayer or filmof viscous bitumen should be applied to the partiallyfinished surfaceand that this film should be applied in such a manner that the crevicesbetween the articles of crushed stone should be entirely led and thatthe protruding stones or high places should receive as little of thebitumen as possible in order that the material may not be unnecessarilywasted. This result is accomplished by the apparatus hereinafterdescribed, and shown in the ac companying drawings, in which likeletters of reference refer to like parts in the different views.

Figure 1 is a plan view of a spreader embodying my invention, showingthe segmental spreader. Fig. 2 is a longitudinal vertical section of thesame, more particularly adapted to show the regulating-valve.

Referring to the drawings, Ais a receptacle' or supply-tank for thebitumen, of any suitable size and form, but preferably constructed inthe shape of a rectangular box. Attached to the sides of this box andextendjoined at their ends by the cross-bar C; Running from the shaftsto the rece tacle are the braces D, carrying straps E, w 'ch serve tohold the axle F firmly in place.

G re resents wheels mounted on the axle F,whic serve to support theapparatuswhen the spreader is not in use.

Mounted on the bottom of the receptacle A is the se ental flange H, towhich is fastened the exible segmental spreader I, constructed,preferably, of rubber or other resilient material. Located in the bottomof the receptacle and in front of the s reader I is the valve-opening J,whichis a apted to be closed by the valve K.

L is a stem sliding in the guide M, having the valve K mounted on oneend thereof, the other end being pivotally connected to the lever N. Thelever N, pivoted to the side of the receptacle at O, is extended-outwardbetween the shafts B and is bent at right angles at a point near its endto form an arm P,

which extends through the o ening formed by the stra Q and frictional yengages the cross bar The arm P serves as a handle to operate the leverN and at the same time to hold the lever firmly in any desired position.I

The operation of the apparatus is as follows: The operator after havingfilled the receptacle with liquid bitumen from the heating-kettle graspsthe cross-bar c and by pressing down lifts the spreader clear from theground, when he may push or drag the apparatus to the surface to becovered. The cross-bar is then raised until the spreader takes theweight of the apparatus, the wheels being clear of the ground. The leverN now being raised, the valve is lifted the required amount and theliquid flows in front of the spreader, which, owing to its curved orsegmental character, is enabled to catch and distribute the bitumen overthe surface without permitting any of the fluid to escape around theends. At'the same time the wei l L the apparatus is suflicient topressthe spr very tittlepf th'e nateria 9 I BEST AVAILABLE COP remain on therotuberances of the surface,

filled.

My invention is more particularly adapted to 'be used in the laying ofasphalt or bituminous pavements; but I do not Wish to limit its use tothat alone, as it is e ually aplicable in the waterproofing of roo s andcelars or in any art or process wherein it is required that a film ofmaterial should be ppread over either a smooth or rough surace.

While I have shown and described a curved spreader, I do not wish tolimit myself to that construction, as it is apparent that any spreaderhaving forward-projecting wings or arms would accomplish the samefunction as that accomplished by my device.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In an apparatus of the kind described, a supply-tank, a spreaderrigidly attached I thereto, and adapted to support the tank, in

combination wit a feed located in front of said spreader, as and for thepurposes set forth.

2. In an apparatus for spreading a substance, a curved flexiblespreader, and means whereby it may be drawn over the surface to bespread.

3. In an apparatus for spreading a substance, a curved spreader, andmeans whereby it may be drawn over the surface to be spread.

4. In an apparatus for spreading substances on a surface, a supply-tank,a support for said tank comprising a flexible spreader rigidly attachedto said tank, in

combination with a feed located in front of said spreader, and adaptedto deliver material thereto, as described.

5. In an apparatus of the kind described, a supply-tank, and means tosupport said tank comprising a curved spreader.

6. In an apparatus of the kind described, a supply-tank, and means tosupport said tank comprising a curved, flexible spreader.

7. In a spreading apparatus of the kind described, comprising asupply-tank, and a curved spreader, means for delivering the material tobe spread in front of said spreader, as described.

8. In a spreading apparatus of the kind described, a tank, one or moreshafts for moving said tank provided with a cross-bar to serve as adraft-handle, a feed-opening for said tank, a valve for closing saidfeed-opening, and a lever connected to said valve and adapted to operateit, one end of said lever being located at and adapted to frictionallyengage said draft-bar whereby the operator may change the position ofsaid valve without removing his hands from said draft-bar, and saidvalve will be frictionally retained in position until again moved by theoperator, as set forth.

9. In a spreading apparatus of the kind described, a tank, wheelsadapted to support said tank when not in use, a spreader located belowsaid tank and at approximately the level of the supporting-surface ofsaid wheels, to support said tank when in use, and means for draggingsaid apparatus as described.

AUGUST E. SCIIUTTE.

In presence of J. E. R. HAYES, M. E. FLAHERTY.

